[Buildroot] [PATCH] core: do not attempt downloads with no _VERSION set

[Alex Suykov <alex.suykov@gmail.com>]

Currently, when the package defines no _SOURCE and no _VERSION
variables, we end up trying to download <PACKAGE>-undefined.tar.gz.

This is utterly pointless.

Change the logic to not attempt a download when neither _SOURCE
nor _VERSION is set:
  - do not set an undefined _VERSION to "undefined"
  - do not append an empty (or "undefined") version to the package
    rawname
  - use the package rawname in the MESSAGE macro

Consequently, for packages that have no _VERSION, the build
directory will be just the package name (which to some may look
nicer than the current "package-undefined").

Furthermore, the message trace is also a bit leaner (to the same
people that find "package" nicer than "package-undefined").

Signed-off-by: Alex Suykov <alex.suykov@gmail.com>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
 package/pkg-generic.mk | 6 ++----
 package/pkg-utils.mk   | 2 +-
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
index 1e024d3..a5ee023 100644
--- a/package/pkg-generic.mk
+++ b/package/pkg-generic.mk
@@ -380,8 +380,6 @@ ifndef $(2)_VERSION
   $(2)_DL_VERSION := $$($(3)_DL_VERSION)
  else ifdef $(3)_VERSION
   $(2)_DL_VERSION := $$($(3)_VERSION)
- else
-  $(2)_DL_VERSION = undefined
  endif
 else
  $(2)_DL_VERSION := $$(strip $$($(2)_VERSION))
@@ -392,7 +390,7 @@ ifdef $(3)_OVERRIDE_SRCDIR
   $(2)_OVERRIDE_SRCDIR ?= $$($(3)_OVERRIDE_SRCDIR)
 endif
 
-$(2)_BASE_NAME	=  $(1)-$$($(2)_VERSION)
+$(2)_BASE_NAME	=  $$(if $$($(2)_VERSION),$(1)-$$($(2)_VERSION),$(1))
 $(2)_DL_DIR	=  $$(DL_DIR)/$$($(2)_BASE_NAME)
 $(2)_DIR	=  $$(BUILD_DIR)/$$($(2)_BASE_NAME)
 
@@ -422,7 +420,7 @@ endif
 ifndef $(2)_SOURCE
  ifdef $(3)_SOURCE
   $(2)_SOURCE = $$($(3)_SOURCE)
- else
+ else ifdef $(2)_VERSION
   $(2)_SOURCE			?= $$($(2)_RAWNAME)-$$($(2)_VERSION).tar.gz
  endif
 endif
diff --git a/package/pkg-utils.mk b/package/pkg-utils.mk
index 44bd2c9..c098b55 100644
--- a/package/pkg-utils.mk
+++ b/package/pkg-utils.mk
@@ -83,7 +83,7 @@ INFLATE.tar  = cat
 suitable-extractor = $(INFLATE$(suffix $(1)))
 
 # MESSAGE Macro -- display a message in bold type
-MESSAGE = echo "$(TERM_BOLD)>>> $($(PKG)_NAME) $($(PKG)_VERSION) $(call qstrip,$(1))$(TERM_RESET)"
+MESSAGE = echo "$(TERM_BOLD)>>> $($(PKG)_BASE_NAME) $(call qstrip,$(1))$(TERM_RESET)"
 TERM_BOLD := $(shell tput smso)
 TERM_RESET := $(shell tput rmso)
 
-- 
2.6.4